Portrait of a Russian officer

Article about: Hello guys, I just received this portrait of a Russian officer. If i'm correctly he is an Artillery Captain? What is the stripe below the Red Star, a wound stripe? Can someone help me with t

Yes, he was an Artillery Captain.
The back side:
Combat life fixed the friendship for all the life.
Don't forget, remember if you look at this.
For the memory to my dear friend Mikhail from Vladimir.
20.05.44